Three other companies in Germany, BFI, Solvito and Systag Systemhaus, will host the service for companies there, while IBM’s German subsidiary will serve customers across Europe, according to the BlackBerry website.

The sixth partner, Exchange My Mail, will host the service for clients in North America.

The hosted version of BES10 will provide enterprise customers with more flexibility, scaling from one user to thousands, BlackBerry said. It will offer the same security and reliability as the on-premise version, with additional support from the hosting partner, it said.

Neither BlackBerry nor the partners were immediately able to respond to questions about pricing for the hosted service. Licenses for the on-premise service start at US$19 per device per year, with an additional $4 per device per year for support. To access security features on non-BlackBerry devices, and to access enhanced management tools on BlackBerry devices, customers must purchase a “Gold” license, costing $60 per device per year plus $12 for support.